Hais txog keeb kwm thiab cov txheej txheem kev txhim kho ntawm cov kav dej HDPE
HDPE yeeb nkab (high-density polyethylene yeeb nkab) ua ib feem tseem ceeb ntawm cov niaj hnub no Cov Yeeb Nkab Yas, nws keeb kwm kev loj hlob tuaj yeem muab faib ua cov theem tseem ceeb hauv qab no, ua ke nrog kev hloov pauv ntawm thev naus laus zis, kev nthuav dav ntawm daim ntawv thov thiab txoj cai los txhawb kom muaj kev sib koom ua ke:
Ua ntej, keeb kwm ntawm thev naus laus zis thiab kev loj hlob thaum ntxov (1950s-1980s)
Kev yug ntawm cov khoom siv thiab kev siv thawj zaug
Cov khoom siv HDPE tau tsim thawj zaug los ntawm US Phillips Petroleum Company hauv xyoo 1956, tab sis vim muaj kev txwv ntawm cov thev naus laus zis ua cov yas thaum lub sijhawm ntawd, nws txoj kev nce qib ntawm daim ntawv thov tau qeeb. Nws tsis yog txog thaum xyoo 1960 thaT Hdpe cov resin maj mam matured thiab siv los ua cov kav dej.
Cov kav dej HDPE thawj tiam: ua los ntawm cov polyethylene uas tsis ntom ntom (LDPE), nrog kev ua haujlwm tsawg, tsuas yog rau cov kav dej uas muaj qhov siab tsawg, me me, xws li kev xa roj thaum ntxov thiab kev tso dej hauv kev lag luam.
Kev taw qhia hauv tebchaws thiab kev nyob hauv zos
Kev tsim cov kav dej HDPE hauv Suav teb tau pib thaum xyoo 1980s, thiab tau hloov mus rau thaj chaw los ntawm kev siv tshuab German. Thaum xub thawj, nws feem ntau yog siv hauv kev lag luam petrochemical, nrog rau kev lag luam tsawg. Lub sijhawm no, kev tsim khoom hauv tsev vam khom cov khoom siv txawv teb chaws, kev ua tau zoo ntawm cov khoom thiab cov qauv kev siv tshuab nrog rau qhov sib txawv thoob ntiaj teb.
II. Kev txhim kho thev naus laus zis thiab kev tsim kho tshiab ntawm cov khoom siv (xyoo 1990-thaum ntxov xyoo 2000)
Kev txhim kho kev ua haujlwm ntawm cov resin
Cov khoom siv PE80: Xyoo 1990, cov ntsiab lus ntawm copolymerized monomer tau nce ntxiv, thiab cov khoom tiv thaiv kev tawg ntawm cov khoom siv tau txhim kho kom tau raws li qhov xav tau ntawm cov kav dej nruab nrab, thiab thaj chaw thov tau nthuav dav mus rau kev muab dej hauv nroog thiab kev ntws dej.
Cov Khoom Siv Pe100: thaum kawg ntawm xyoo 1980, Solvay ntawm Belgium tau qhia txog PE100 resin nrog bimodal molecular weight distribution, uas tau txhim kho qhov creep resistance thiab pressure resistance, ua rau HDPE kav dej siv tau rau cov xwm txheej loj, siab (piv txwv li, kev xa dej thiab roj mus deb), thiab txhawb kev lag luam kom nkag mus rau theem tshiab.
Kev txhim kho cov txheej txheem ntau lawm
Cov lag luam hauv tsev tau pom tias muaj kev tsim cov bimodal HDPE resins loj heev los ntawm kev qhia txog cov txheej txheem thoob ntiaj teb (piv txwv li, txoj kev slurry, txoj kev roj theem) los ntawm Hostalen, Borstar, thiab lwm yam, thiab kev ua tau zoo ntawm cov khoom tau mus txog qib thoob ntiaj teb. Piv txwv li, Shanghai Petrochemical's YGH041T thiab Dushanzi Petrochemical's TUB121N3000B suav nrog hauv daim ntawv teev cov khoom pov thawj ntawm Global PE100+ Alliance.
III. Kev Nthuav Dav ntawm Daim Ntawv Thov thiab Kev Ua Lag Luam Tawg (Txij li xyoo pua 21st)
Txoj cai thiab kev xav tau
Thaum lub sijhawm Tuam Tshoj Txoj Kev Npaj Tsib Xyoos Thib Kaum Ib thiab Txoj Kev Npaj Tsib Xyoos Thib Kaum Ob, kev tsim kho vaj tse tau nrawm dua, thiab cov kav dej HDPE maj mam hloov cov kav hlau ib txwm muaj thiab cov kav hlau cam vim lawv qhov zoo ntawm kev tiv taus xeb, lub teeb yuag, thiab lub neej ntev, thiab tau dhau los ua cov kav dej tseem ceeb rau kev tsim kho hauv nroog, kev ywg dej ua liaj ua teb, thiab cov haujlwm tiv thaiv ib puag ncig.
Txhawb nqa los ntawm txoj cai tiv thaiv ib puag ncig hauv tebchaws, HDPE yeeb nkab suav nrog hauv cov ntawv teev cov khoom siv hauv tsev ntsuab vim nws cov yam ntxwv rov ua dua tshiab thiab tsis ua rau muaj kuab paug.
Kev nkag mus rau ntau thaj chaw
Kev tsim kho hauv nroog: siv dav hauv kev muab dej, dej ntws, roj av, tshwj xeeb tshaj yog nyob rau hauv thaj chaw mos mos, nws cov qauv hloov pauv tau yooj yim los hloov kho rau qhov teeb meem kev daws teeb meem.
Kev lag luam thiab kev ua liaj ua teb: siv rau kev thauj mus los ntawm cov tshuaj lom neeg corrosive, kev siv dej hauv av ua liaj ua teb, hloov cov yeeb nkab PVC ib txwm muaj.
Cov teb tshiab: xws li kev kho dua tshiab ntawm ecological, kev tsim kho lub nroog ntse, HDPE yeeb nkab sib xyaw ua ke sensors kom paub txog kev saib xyuas ntse.
IV. Cov Qauv Yav Tom Ntej thiab Cov Kev Siv Tshuab (Tom Qab Xyoo 2025)
Kev tshawb fawb thiab kev tsim cov ntaub ntawv ua tau zoo
PE112, PE125 thiab lwm yam khoom siv muaj zog dua maj mam muag rau kev lag luam kom txhim kho kev tiv thaiv siab los ntawm kev ua kom zoo dua cov qauv molecular, txo cov yeeb nkab phab ntsa tuab thiab txo cov khoom siv.
Ntse thiab Ntsuab
Cov yeeb nkab HDPE ntse sib xyaw ua ke cov sensors kom paub txog kev saib xyuas thiab kev txij nkawm nyob deb, uas haum rau cov kev xav tau ntawm cov nroog ntse.
HDPE uas lwj tau, cov ntaub ntawv nano-modified thiab lwm yam thev naus laus zis uas tsis ua rau ib puag ncig puas tsuaj tau nkag mus rau theem sim, txhawb kev txhim kho kev lag luam kom ruaj khov.
Kev ua thoob ntiaj teb
Raws li "Belt and Road", Tuam Tshoj cov yeeb nkab HDPE tau ua kom cov khoom xa tawm sai dua, tshwj xeeb tshaj yog nyob rau sab hnub tuaj Asia, Africa thiab lwm qhov chaw uas muaj kev thov kom muaj kev tsim kho vaj tse, kev lag luam tseem txuas ntxiv nthuav dav.
Sau luv luv
Keeb kwm kev loj hlob ntawm cov yeeb nkab HDPE qhia txog tag nrho cov saw hlau los ntawm kev tshawb fawb txog khoom siv mus rau kev siv hauv kev lag luam. Nws cov thev naus laus zis rov ua dua (xws li cov khoom siv PE100), kev txhawb nqa txoj cai (xws li cov khoom siv ntsuab) thiab kev thov ua lag luam (xws li kev loj hlob hauv nroog) ua ke tsav kev loj hlob ntawm kev lag luam. Yav tom ntej, nrog kev koom ua ke ntawm kev tsim kho tshiab ntawm cov khoom siv thiab cov thev naus laus zis ntse, cov yeeb nkab HDPE yuav ua lub luag haujlwm tseem ceeb hauv ntau qhov chaw.
